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<regex>
: Allow initial ]
to start character ranges in POSIX regular expressions
#5364
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Merged
StephanTLavavej
merged 3 commits into
microsoft:main
from
muellerj2:regex-fix-initial-right-bracket-in-posix-regexes
Apr 10, 2025
Merged
<regex>
: Allow initial ]
to start character ranges in POSIX regular expressions
#5364
StephanTLavavej
merged 3 commits into
microsoft:main
from
muellerj2:regex-fix-initial-right-bracket-in-posix-regexes
Apr 10, 2025
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<regex>
: Allow initial ] to start character ranges in POSIX regular expressions<regex>
: Allow initial ]
to start character ranges in POSIX regular expressions
StephanTLavavej
approved these changes
Apr 2, 2025
Thanks! 😻 I pushed changes to significantly expand the test coverage. |
I'm mirroring this to the MSVC-internal repo - please notify me if any further changes are pushed. |
Resolved adjacent-add conflict in |
StephanTLavavej
approved these changes
Apr 10, 2025
🥕 💵 ⭐ |
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Fixes a regex miscompilation noticed in #5165.
The POSIX standard says that the right bracket ] is not special at the beginning of a bracketed character class (https://pubs.opengroup.org/onlinepubs/009696699/basedefs/xbd_chap09.html#tag_09_03_05). This means that an initial ] behaves like any other character, so it may also be the start of a character range.